Glad I could help. The older boxes just have the generic sticker like that box has. All the newer boxes should have a colored sticker to reflect the drive inside: I found an example of one on NewEgg ( http://www.newegg.com/Product/Product.aspx?Item=9SIA0AJ1Y20120))
The drives are physically identical but retail drives are in the graphical boxes and not a standard brown shipping box. They also typically come with additional stuff like mounting screws, documentation, etc. depending on the drive.
I included a link below with a quick explanation of the difference:
Difference between OEM and Retail
